[OpenLayers-Users] Customize Panning Resolutions

[Erik Uzureau]

embarrassingly, that is *not* customizable in OL right now.

It *should* be, via the property 'slideFactor' on the PanZoom control.

However, if we look closely at the buttonDown() function, we'll
see that the 50's are hardcoded in there.

If you *really* need to change this, it can be done. you'd have to add
a patch like this:

OpenLayers.Control.PanZoom.prototype.buttonDown = function(evt) {
        if (!OpenLayers.Event.isLeftClick(evt)) return;

        switch (this.action) {
            case "panup":
                this.map.pan(0, -50);
                break;
            case "pandown":
                this.map.pan(0, 50);
                break;
            case "panleft":
                this.map.pan(-50, 0);
                break;
            case "panright":
                this.map.pan(50, 0);
                break;
            case "zoomin":
                this.map.zoomIn();
                break;
            case "zoomout":
                this.map.zoomOut();
                break;
            case "zoomworld":
                this.map.zoomToMaxExtent();
                break;
        };

        OpenLayers.Event.stop(evt);
    };

you'd have to call that *before* instantiating the your map (or at
least your panzoom control) and *after* loading the OpenLayers.js
library of course, you'd replace the 50's with whatever else you want.

I'm making a ticket to have this fixed in 2.6.

Thanks for the report!
Erik



On 9/18/07, Linda Rawson <linda.rawson at gmail.com> wrote:
> I of course have this issue with having to do all sorts of things when the
> user is at a certain resolution.  The latest thing is they want the panning
> unit decreased.  When they pan right they only want to go a certain distance
> not the default zoom scale.  Is there a way to change the amount of the pan?
>
> Thanks,
> Linda Rawson
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